Battery pack



FIG. 1 is a top left side perspective view of the battery pack.

FIG. 2 is a top view of the battery pack.

FIG. 3 is a front view of the battery pack, the rear view being a mirror image thereof.

FIG. 4 is a bottom perspective view of the battery pack, showing it plugged into a mouse; and,

FIG. 5 is a top front perspective view of the battery pack, showing a charging base station underneath the battery pack.

The broken lines in the drawings are for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a battery pack, as shown and described. 